EP2499081B1 - Vehicle lift - Google Patents

Vehicle lift Download PDF

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Publication number
EP2499081B1
EP2499081B1 EP10760282.3A EP10760282A EP2499081B1 EP 2499081 B1 EP2499081 B1 EP 2499081B1 EP 10760282 A EP10760282 A EP 10760282A EP 2499081 B1 EP2499081 B1 EP 2499081B1
Authority
EP
European Patent Office
Prior art keywords
arm
hinged
lift
upright
cylinders
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10760282.3A
Other languages
German (de)
French (fr)
Other versions
EP2499081A1 (en
Inventor
Eride Rossato
Alberto Comand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OMER SpA
Original Assignee
OMER SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OMER SpA filed Critical OMER SpA
Priority to SI201030918T priority Critical patent/SI2499081T1/en
Priority to PL10760282T priority patent/PL2499081T3/en
Publication of EP2499081A1 publication Critical patent/EP2499081A1/en
Application granted granted Critical
Publication of EP2499081B1 publication Critical patent/EP2499081B1/en
Priority to HRP20150398TT priority patent/HRP20150398T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0633—Mechanical arrangements not covered by the following subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0691—Asymmetric linkages, i.e. Y-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement

Definitions

  • the present invention relates to a lift.
  • An object of the invention is to provide a lift able to compensate deformations and misalignments, and hence prevent internal overloads on the various structural components.
  • Another object of the invention is to provide a lift able to assume a deformed geometry and/or to absorb unbalanced loads, while always remaining in equilibrium and without generating structural overloads.
  • the lift of the invention comprises substantially a pair of runways 2 raisable from the floor by elevators indicated overall by 4, which in the illustrated embodiment are two in number.
  • Each elevator comprises a first upright 6, hinged to a hinging bracket 8 fixed to the workshop floor or to a base longitudinal member, the upright being hinged at its other end to a second upright 10 of the same length, which at its other end is hinged to a lug 12 provided on the runway 2.
  • first arm 14 hinged at its other end to a second arm 16, the other end of which is provided with rollers or slide blocks 18 slidable along guides 20 provided on the longitudinal members of the runways.
  • the second arm 16 is also hinged to the second upright 10 on a pin 22 such that the distance of the pin 22 from the lug 12 corresponds to the distance of the pin 22 from the roller 18.
  • a piston rod 24 of a cylinder-piston unit is hinged on the pin 28 on which the first arm 14 is hinged to the first upright 6.
  • the first arm 14 is formed in two separate portions 14', 14" connected together by a compensation hydraulic cylinder-piston unit 30.
  • the cylinders 36 are fed via a flow synchronizer 32 which simultaneously ensures an equal movement of the piston rods 24 within the cylinders 26 and hence guarantees synchronism of movement of the runways 2 during lifting and descent.
  • the flow synchronizer 32 comprises substantially a base 34 on which four double acting cylinders 36 are mounted with their longitudinal axes parallel.
  • Each cylinder 36 is hinged at its bottom 38 to lugs 40 rigid with the base, the piston rod 42 of each cylinder having its free end hinged to a crank 44 rigid with a torsion bar 46 perpendicular to the longitudinal axis of the cylinders and hinged at its ends to brackets 48.
  • Each cylinder is provided with an entry conduit 50 for hydraulic fluid originating from a control centre 52, and with an exit conduit 54 for feeding the hydraulic cylinder-piston units for raising the lift runways 2.
  • the lift of the invention operates in the following manner: when in its lowered condition the hydraulic cylinder-piston units are in their condition of minimum elongation. Under these conditions, the vehicle (not shown in the drawings) can be driven onto the runways.
  • Operating fluid is then fed into the hydraulic cylinder-piston units via the synchronizer 32.
  • the hydraulic fluid fed by the control centre 52 is distributed into the cylinders 36 from the bottom 38, to hence move the piston heads 56 and cause oil to leave through the conduits 54, to feed the hydraulic cylinder-piston units, with consequent rotation of the torsion bar 46 via the crank 44.
  • the hydraulic cylinder-piston unit When the lift is subjected to an unbalanced load, the hydraulic cylinder-piston unit enables the two portions 14', 14" of the arm 14 to assume a deformed geometry and consequently absorb this unbalance.
  • the elastic element can be provided at the end of the second arm 24 supporting the roller 18.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Actuator (AREA)
  • Jib Cranes (AREA)
  • Types And Forms Of Lifts (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Paper (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

  • The present invention relates to a lift.
  • An object of the invention is to provide a lift able to compensate deformations and misalignments, and hence prevent internal overloads on the various structural components.
  • Another object of the invention is to provide a lift able to assume a deformed geometry and/or to absorb unbalanced loads, while always remaining in equilibrium and without generating structural overloads.
  • These objects are attained according to the invention by a lift for motor vehicles as described in claim 1.
  • DE 299 16 254 U1 discloses a motor vehicle lift comprising two parallel runways, whereby each runway is provided with a single device for elevating it from the floor.
  • The present invention is described in detail hereinafter with reference to the accompanying drawings, in which:
    • Figure 1 is a side view of a lift according to the invention in its raised condition,
    • Figure 2 shows it in an intermediate stage,
    • Figure 3 shows it in front view in its lowered condition,
    • Figure 4 shows in schematic plan view a flow synchronizer for feeding the hydraulic cylinder-piston units, and
    • Figures 5-7 show the movement steps of a cylinder forming an element of the flow synchronizer.
  • As can be seen from the figures, the lift of the invention comprises substantially a pair of runways 2 raisable from the floor by elevators indicated overall by 4, which in the illustrated embodiment are two in number.
  • Each elevator comprises a first upright 6, hinged to a hinging bracket 8 fixed to the workshop floor or to a base longitudinal member, the upright being hinged at its other end to a second upright 10 of the same length, which at its other end is hinged to a lug 12 provided on the runway 2.
  • Also hinged to the first upright 6 there is a first arm 14 hinged at its other end to a second arm 16, the other end of which is provided with rollers or slide blocks 18 slidable along guides 20 provided on the longitudinal members of the runways.
  • The second arm 16 is also hinged to the second upright 10 on a pin 22 such that the distance of the pin 22 from the lug 12 corresponds to the distance of the pin 22 from the roller 18.
  • Also hinged on the pin 22 is the end of a piston rod 24 of a cylinder-piston unit, of which the cylinder 26 is hinged on the pin 28 on which the first arm 14 is hinged to the first upright 6.
  • The first arm 14 is formed in two separate portions 14', 14" connected together by a compensation hydraulic cylinder-piston unit 30.
  • The cylinders 36 are fed via a flow synchronizer 32 which simultaneously ensures an equal movement of the piston rods 24 within the cylinders 26 and hence guarantees synchronism of movement of the runways 2 during lifting and descent.
  • The flow synchronizer 32 comprises substantially a base 34 on which four double acting cylinders 36 are mounted with their longitudinal axes parallel.
  • Each cylinder 36 is hinged at its bottom 38 to lugs 40 rigid with the base, the piston rod 42 of each cylinder having its free end hinged to a crank 44 rigid with a torsion bar 46 perpendicular to the longitudinal axis of the cylinders and hinged at its ends to brackets 48.
  • Each cylinder is provided with an entry conduit 50 for hydraulic fluid originating from a control centre 52, and with an exit conduit 54 for feeding the hydraulic cylinder-piston units for raising the lift runways 2.
  • The lift of the invention operates in the following manner: when in its lowered condition the hydraulic cylinder-piston units are in their condition of minimum elongation. Under these conditions, the vehicle (not shown in the drawings) can be driven onto the runways.
  • Operating fluid is then fed into the hydraulic cylinder-piston units via the synchronizer 32.
  • The hydraulic fluid fed by the control centre 52 is distributed into the cylinders 36 from the bottom 38, to hence move the piston heads 56 and cause oil to leave through the conduits 54, to feed the hydraulic cylinder-piston units, with consequent rotation of the torsion bar 46 via the crank 44.
  • As the cylinder-piston units gradually lengthen, and by virtue of the particular choice of hinge points:
    • the uprights 6, 10, which when the lift is in its lowered configuration are practically coplanar, are rotated relative to each other such that the angle formed between them increases,
    • the arms 14, 16 are also rotated relative to each other such that the angle formed between them increases, and while the arm 14 rotates about the pin on which it is hinged to the arm 16, its other end slides with the roller 18 along the guide 20 in the sense of approaching the hinge 12.
  • The result is an upward translation of the runways 2 from the floor, while remaining parallel to this latter.
  • When the lift is subjected to an unbalanced load, the hydraulic cylinder-piston unit enables the two portions 14', 14" of the arm 14 to assume a deformed geometry and consequently absorb this unbalance.
  • It is apparent that if there is a non-uniform load distribution on the lift runways, the effect of the different pressure on the hydraulic cylinder-piston unit concerned will be to move the rod 42 of the corresponding piston, but as all the piston rods are connected together by the torsion bar 46, this movement will result in the synchronized movement of all the pistons of the bank.
  • In a different embodiment, the elastic element can be provided at the end of the second arm 24 supporting the roller 18.

Claims (7)

  1. A motor vehicle lift comprising two parallel runways for supporting the vehicle wheels, each runway being provided with at least two devices for elevating them from the floor, characterised in that each device comprises
    - a pair of equal-length first (6) and second (10) uprights having an end hinged to each other, and the other end hinged to the floor and to the runway respectively, in positions corresponding with two superposed vertical axes,
    - a pair of first (14) and second (16) arms hinged together at one end, the first arm (14) having a length shorter than that one of the second arm (16) which is hinged to the second upright (10) along a hinging axis (22) equidistant from the axis (12) on which the second upright (10) is hinged to the runway (2) and from the end (18) of the second arm (16) which is slidable along a guide (20) provided in the runway (2), the first arm (14) being hinged at the other end to the first upright (6) in a position such that the distance of the hinge pin (22) of the second arm (16)/second upright (10) from the hinging axis of the first upright (6)/second upright (10) corresponds to the distance of the hinging axis of the first arm (14)/second arm (16) from the hinge pin (28) of the first arm (14)/first upright (6),
    - an actuator device (24, 26) hinged at its ends on hinge pin (22) of the second arm and on the hinge pin (28) of the first arm respectively.
    - at least one of the first/ second uprights or first/second arm are provided with elastic means (30) enabling it to vary the dimension between its hinged ends.
  2. A lift as claimed in claim 1, characterised in that the first arm (14) is formed in two separate portions (14', 14") connected together by a hydraulic cylinder (30).
  3. A lift as claimed in any one of claims from 1 to 2, characterised in that the elastic element is provided at that end of the second arm (16) slidable along the guide (20).
  4. A lift as claimed in claim 1, characterised in that the actuator devices consist of hydraulic cylinder-piston units.
  5. A lift as claimed in any one of claims from 1 to 4, characterised in that a flow synchronizer (32) is associated with the actuator devices.
  6. A lift as claimed in claim 5 characterised in that the flow synchronizer (32) comprises a control centre (54) which feeds a hydraulic fluid to equal double acting cylinders (36) with parallel longitudinal axes, hinged at their bottoms to a fixed structure (34), the rods (42) of the cylinder pistons being hinged at their free end to a crank (44) rigid at its other end with a torsion bar (46) disposed perpendicular to the axis of the cylinders (36) and hinged to the fixed structure, the hydraulic fluid outlets (54) of said cylinders (36) leading to the hydraulic members (22, 24) for raising the lift.
  7. A lift as claimed in claim 6, characterised in that the bottoms (38) of the cylinders (36) are hinged to lugs (40) rigid with the fixed structure (34), with which hinging brackets (48) for the tension bar are also rigid.
EP10760282.3A 2009-09-17 2010-09-08 Vehicle lift Active EP2499081B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201030918T SI2499081T1 (en) 2009-09-17 2010-09-08 Vehicle lift
PL10760282T PL2499081T3 (en) 2009-09-17 2010-09-08 Vehicle lift
HRP20150398TT HRP20150398T1 (en) 2009-09-17 2015-04-10 Vehicle lift

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE2009A000051A IT1398012B1 (en) 2009-09-17 2009-09-17 LIFTING BRIDGE.
PCT/EP2010/063182 WO2011032872A1 (en) 2009-09-17 2010-09-08 Vehicle lift

Publications (2)

Publication Number Publication Date
EP2499081A1 EP2499081A1 (en) 2012-09-19
EP2499081B1 true EP2499081B1 (en) 2015-01-28

Family

ID=42120029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10760282.3A Active EP2499081B1 (en) 2009-09-17 2010-09-08 Vehicle lift

Country Status (13)

Country Link
US (1) US8286944B2 (en)
EP (1) EP2499081B1 (en)
KR (1) KR101728572B1 (en)
CN (1) CN102630212B (en)
DK (1) DK2499081T3 (en)
ES (1) ES2532979T3 (en)
HR (1) HRP20150398T1 (en)
IT (1) IT1398012B1 (en)
PL (1) PL2499081T3 (en)
PT (1) PT2499081E (en)
RU (1) RU2545532C2 (en)
SI (1) SI2499081T1 (en)
WO (1) WO2011032872A1 (en)

Families Citing this family (19)

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CA2757882A1 (en) * 2009-05-07 2010-11-11 Vehicle Service Group, Llc Multi-link automotive alignment lift
IT1398012B1 (en) * 2009-09-17 2013-02-04 O Me R Spa LIFTING BRIDGE.
WO2012135078A2 (en) * 2011-03-25 2012-10-04 Boomerang Systems, Inc. Scissor lift
CN104176675B (en) * 2013-10-30 2015-06-10 上海联影医疗科技有限公司 Retractable supporting structure and hospital bed lifting mechanism
EP3177560B1 (en) * 2014-08-06 2019-09-04 Vehicle Service Group, LLC Linear motion linkage assembly for automotive lift
US9387869B1 (en) 2015-04-16 2016-07-12 Aviad Berger Luggage with mechanically integrated trolley
ITVI20150118A1 (en) 2015-05-13 2016-11-13 Omcn S P A MOTOR VEHICLE LIFT
US10246313B2 (en) 2015-07-31 2019-04-02 Vehicle Service Group, Llc Precast concrete pit
US10227222B2 (en) 2015-07-31 2019-03-12 Vehicle Service Group, Llc Precast concrete pit
WO2017021865A1 (en) * 2015-08-03 2017-02-09 O.Me.R. S.P.A. Improved lift for motor vehicles
ITUB20152757A1 (en) * 2015-08-03 2017-02-03 O Me R Spa Improved lift for vehicles.
KR101666419B1 (en) * 2016-01-15 2016-10-14 코이타 주식회사 lift for car repairing
KR101666421B1 (en) * 2016-01-15 2016-10-14 코이타 주식회사 Lift table for maintaining and repairing a vehicle which allows greater precision of control
CN107792812A (en) * 2016-08-31 2018-03-13 天津市汇点机电设备开发有限公司 The rack mechanical hoistable platforms of 60KN tri-
CN106379440A (en) * 2016-08-31 2017-02-08 张玉华 Intelligent potted plant transfer robot
TWI635039B (en) * 2017-07-27 2018-09-11 銘倫精機股份有限公司 Car jacking machine
RU2765183C1 (en) * 2018-09-11 2022-01-26 Верзер Интернешенел С.П.А. Hydraulic lifting device with vertical lifting movement for cars and similar vehicles
US11051632B1 (en) * 2020-03-10 2021-07-06 Kellie Lantz Multi-height table and chair set
IT202200018561A1 (en) * 2022-09-12 2024-03-12 O Me R Spa Lift bridge, especially for motor vehicles.

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Also Published As

Publication number Publication date
SI2499081T1 (en) 2015-05-29
RU2012115118A (en) 2013-10-27
ES2532979T3 (en) 2015-04-06
US20120168701A1 (en) 2012-07-05
HRP20150398T1 (en) 2015-05-08
PT2499081E (en) 2015-04-16
US8286944B2 (en) 2012-10-16
WO2011032872A1 (en) 2011-03-24
EP2499081A1 (en) 2012-09-19
ITVE20090051A1 (en) 2011-03-18
CN102630212A (en) 2012-08-08
RU2545532C2 (en) 2015-04-10
IT1398012B1 (en) 2013-02-04
DK2499081T3 (en) 2015-05-04
KR20120064691A (en) 2012-06-19
PL2499081T3 (en) 2015-07-31
CN102630212B (en) 2015-04-01
KR101728572B1 (en) 2017-04-19

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